Slipform Construction of Highrise Building （滑模施工的高层建筑）.pdfVIP

Slipform Construction of High-rise Building Cores This post provides a quick overview about construction of service cores of tall buildings using slipform construction technique. Slipform construction technique has been gaining a lot of popularity over the years in the construction of mid to high- rise buildings because of the many advantages it has to offer, especially for buildings having about ten storeys or more. For low-rises however, this approach is economically not viable. In previous posts, use of this technique for other tall structures like chimneys, silos, cooling towers etc. was briefly discussed. In case of these structures a non- stop concrete pouring schedule is normally adopted in order to impart monolithic attributes to the structures by keeping joints, voids, discontinuities etc. in the structures to the bare minimum. The same is however not a basic necessity for buildings and hence around the clock concreting too is not a must in the case of slipform construction method for highrises. A day-time-only kind of construction schedule is not uncommon in such projects. Nevertheless, if situation permits, an around-the-clock schedule would always result not only in higher progress but also in higher economy. Quality of the product is also quite superior. There are several reasons of slipform construction being economical for tall buildings or structures. The key reason is the repetitive nature of the method itself. Once installed, the formwork need not be dismantled and reinstalled again for further use. The same setting continues till the job, in this case the core structure of a high-rise, is complete. Even in the case of a very tall building where the core is sometimes reduced abruptly at certain elevations for various reasons, change in settings of the slipform structure need to be done only at those f